Somebody help me-Why button is not visible??

Question

button on AircraftCockpitPanel is not visible, plz somebody help me
and if possible help me to make AircraftCockPit Panel transparent
import java.awt.Color;
import java.awt.GraphicsEnvironment;
import java.awt.*;
import javax.swing.*;
import javax.swing.JFrame;
public class RBStrategy implements Runnable
     private JFrame frame;
     static boolean onlyScreen = true;
     static Screen screen;
     static AircraftCockPit aircraftCockPit;
     public RBStrategy(JFrame frame, Screen screen)
          this.frame = frame;
          this.screen = screen;
     public static void main(String[] args)
          JFrame frame = new JFrame();
          screen = new Screen();
          frame.setUndecorated(true);
          frame.getContentPane().add(screen);
          GraphicsEnvironment.getLocalGraphicsEnvironment().
               getDefaultScreenDevice().setFullScreenWindow(frame);
          screen.setLayout(null);
          aircraftCockPit = new AircraftCockPit(screen);
          new RBStrategy(frame, screen).run();
     public void run()
          do
               String output;
               try
                    Thread.sleep(1000);
               catch (InterruptedException ie)
                    ie.printStackTrace(System.err);
          while (true);
class Screen
     extends JPanel
     implements
          Runnable {
               boolean progressing = true;
               Thread t;
               Screen()     {
                    this.add(new JButton("ButtonScreen"));
                    this.setBackground(Color.BLACK);
                    this.start();
             public void stop()     {
                  progressing = false;
                  t.stop();
             public void start()     {
                  progressing = true;
                  t = new Thread(this);
                  t.start();
             protected void paintComponent(Graphics g)     {
                       super.paintComponent(g);
                       g.setColor(Color.red);
                       for(int i=0;i<this.getHeight();i=i+10)     {
                                 g.drawLine(0,i,this.getWidth(),i);
               public void run()     {
                    try     {
                         while(progressing)     {
                              this.repaint();
                              Thread.sleep(1);
                    }catch     (InterruptedException e)     {
                         System.out.println("Interrupted");
class AircraftCockPit
     extends JPanel
     implements  Runnable {
          boolean progressing=true;     
          Thread t;
          JButton jButton;
          Screen screen;
          AircraftCockPit(Screen s)     {
               screen = s;
               jButton=new JButton("ButtonCockPit");
               jButton.setBounds(30,30,40,40);
               this.setBackground(Color.GRAY);
               this.setBounds(s.getWidth()*3/4,s.getHeight()>>2,s.getWidth()>>2,s.getHeight()*9/20);
               s.add(this);
               this.start();
          public void stop()     {
               progressing = false;
               t.stop();
          public void start()     {
               progressing = true;
               t = new Thread(this);
               t.start();
          protected void paintComponent(Graphics g)     {
                    super.paintComponent(g);
          public void run()     {
               try     {
                    while(progressing)     {
                         this.repaint();
                         Thread.sleep(2);
               }catch     (InterruptedException e)     {
                    System.out.println("Interrupted");
}

Answer 1

Quit multi-posting you are wasting peoples time. I gave you the answer yesterday:
http://forum.java.sun.com/thread.jspa?threadID=5230919&start=4